package snake;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import com.borland.jbcl.layout.*;

/**
 * <p>Title: 貪食蛇游戲</p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2005</p>
 * <p>Company: </p>
 * @author zsb
 * @version 1.0
 */

public class MainFrame extends JFrame {
  private JPanel contentPane;//窗體內容網格
  private JToolBar jToolBar1 = new JToolBar();//工具欄
  private JButton jButton1 = new JButton();//游戲開始按鈕
  private JButton jButton2 = new JButton();//游戲暫停按鈕
  private JButton jButton3 = new JButton();//游戲退出按鈕
  private JButton jButton4 = new JButton();//幫助按鈕
  private JPanel jPanel1 = new JPanel();//游戲主體面板容器
  private JPanel jPanel_PlayArea = new JPanel();//游戲區面板容器

  private XYLayout xYLayout1 = new XYLayout();//容器布局管理器
  private XYLayout xYLayout2 = new XYLayout();
  private XYLayout xYLayout3 = new XYLayout();
  private static final int UP = 1, LEFT = 2, DOWN = 3, RIGHT = 4;//貪食蛇運動方向
  private static final int BEGINNER = 1, MIDDLE = 2, EXPERT = 3;//游戲級別常量
  private static final int ROWS = 30;//游戲區行數
  private static final int COLS = 50;//游戲區列數
  private boolean isPause = false;//游戲暫停標志
  private boolean isEnd;//游戲結束標志
  private SnakeBody snake ;//貪食蛇
  private int score = 0;//當前得分
  private int level = BEGINNER;//當前游戲級別
  SnakeThread thread = new SnakeThread();//游戲主線程
  private GridLayout gridLayout1 = new GridLayout(ROWS, COLS, 0, 0);//游戲區布局
  private JButton[][] playBlocks;//游戲區的所有方塊

  JPanel jPanel2 = new JPanel();
  JLabel jLabel1 = new JLabel();
  JLabel jLabel2 = new JLabel();
  JLabel jLabel3 = new JLabel();
  JLabel jLabel4 = new JLabel();
  JLabel jLabel5 = new JLabel();
  JLabel jLabel6 = new JLabel();
  JLabel jLabel7 = new JLabel();
  ButtonGroup buttonGroup1 = new ButtonGroup();
  JRadioButton jRadioButton1 = new JRadioButton();
  JRadioButton jRadioButton2 = new JRadioButton();
  JRadioButton jRadioButton3 = new JRadioButton();


  //Construct the frame
  public MainFrame() {
    enableEvents(AWTEvent.WINDOW_EVENT_MASK);
    try {
      jbInit();
    }
    catch (Exception e) {
      e.printStackTrace();
    }
  }

  //Component initialization
  private void jbInit() throws Exception {
    //setIconImage(Toolkit.getDefaultToolkit().createImage(MainFrame.class.getResource("[Your Icon]")));
    contentPane = (JPanel)this.getContentPane();
    contentPane.setLayout(xYLayout2);
    this.setResizable(false);
    this.setSize(new Dimension(512, 414));
    this.setTitle("貪食蛇");
    this.addKeyListener(new MainFrame_this_keyAdapter(this));
    jButton1.setFont(new java.awt.Font("DialogInput", 0, 12));
    jButton1.setMaximumSize(new Dimension(79, 39));
    jButton1.setMinimumSize(new Dimension(79, 39));
    jButton1.setPreferredSize(new Dimension(79, 39));
    jButton1.setFocusPainted(false);
    jButton1.setText("開始");
    jButton1.addActionListener(new MainFrame_jButton1_actionAdapter(this));
    jButton1.addKeyListener(new MainFrame_this_keyAdapter(this));
    jButton2.setText("暫停");
    jButton2.addActionListener(new MainFrame_jButton2_actionAdapter(this));
    jButton2.setPreferredSize(new Dimension(79, 39));
    jButton2.setFocusPainted(false);
    jButton2.setMinimumSize(new Dimension(79, 39));
    jButton2.setMaximumSize(new Dimension(79, 39));
    jButton2.setFont(new java.awt.Font("DialogInput", 0, 12));
    jButton2.addKeyListener(new MainFrame_this_keyAdapter(this));
    jButton3.setText("退出");
    jButton3.addActionListener(new MainFrame_jButton3_actionAdapter(this));
    jButton3.setPreferredSize(new Dimension(79, 39));
    jButton3.setFocusPainted(false);
    jButton3.setMinimumSize(new Dimension(79, 39));
    jButton3.setMaximumSize(new Dimension(79, 39));
    jButton3.setFont(new java.awt.Font("DialogInput", 0, 12));
    jButton3.addKeyListener(new MainFrame_this_keyAdapter(this));
    jButton4.setText("幫助");
    jButton4.addActionListener(new MainFrame_jButton4_actionAdapter(this));
    jButton4.setPreferredSize(new Dimension(79, 39));
    jButton4.setFocusPainted(false);
    jButton4.setMinimumSize(new Dimension(79, 39));
    jButton4.setMaximumSize(new Dimension(79, 39));
    jButton4.setFont(new java.awt.Font("DialogInput", 0, 12));
    jButton4.addKeyListener(new MainFrame_this_keyAdapter(this));
    jPanel1.setLayout(xYLayout1);
    jPanel1.addKeyListener(new MainFrame_this_keyAdapter(this));
    jPanel_PlayArea.setLayout(gridLayout1);
    jPanel_PlayArea.setBorder(BorderFactory.createEtchedBorder());
    jPanel_PlayArea.addKeyListener(new MainFrame_this_keyAdapter(this));
    jLabel1.setFont(new java.awt.Font("DialogInput", 0, 12));
    jLabel1.setText("得分：");
    jPanel2.setLayout(xYLayout3);
    jLabel2.setFont(new java.awt.Font("DialogInput", 0, 12));
    jLabel2.setToolTipText("");
    jLabel2.setText("0");
    jLabel3.setText("穿身：");
    jLabel3.setFont(new java.awt.Font("DialogInput", 0, 12));
    jLabel4.setFont(new java.awt.Font("DialogInput", 0, 12));
    jLabel4.setText("0");
    jLabel5.setText("穿墻：");
    jLabel5.setFont(new java.awt.Font("DialogInput", 0, 12));
    jLabel5.setToolTipText("");
    jLabel6.setText("0");
    jLabel6.setFont(new java.awt.Font("DialogInput", 0, 12));
    jLabel6.setToolTipText("");
    jRadioButton1.setFont(new java.awt.Font("DialogInput", 0, 12));
    jRadioButton1.setText("初級");
    jRadioButton1.addActionListener(new MainFrame_jRadioButton1_actionAdapter(this));
    jRadioButton1.addKeyListener(new MainFrame_this_keyAdapter(this));
    jRadioButton2.setText("中級");
    jRadioButton2.addActionListener(new MainFrame_jRadioButton2_actionAdapter(this));
    jRadioButton2.addKeyListener(new MainFrame_this_keyAdapter(this));
    jRadioButton2.setFont(new java.awt.Font("DialogInput", 0, 12));
    jRadioButton3.setText("高級");
    jRadioButton3.addActionListener(new MainFrame_jRadioButton3_actionAdapter(this));
    jRadioButton3.setFont(new java.awt.Font("DialogInput", 0, 12));
    jRadioButton3.addKeyListener(new MainFrame_this_keyAdapter(this));
    buttonGroup1.add(jRadioButton1);
    buttonGroup1.add(jRadioButton2);
    buttonGroup1.add(jRadioButton3);
    jRadioButton1.setSelected(true);
    jLabel7.setFont(new java.awt.Font("DialogInput", 0, 12));
    jLabel7.setText("等級：");
    contentPane.add(jToolBar1,  new XYConstraints(0, 0, 512, -1));
    jToolBar1.add(jButton1, null);
    jToolBar1.add(jButton2, null);
    jToolBar1.add(jButton3, null);
    jToolBar1.add(jButton4, null);
    jToolBar1.addKeyListener(new MainFrame_this_keyAdapter(this));
    contentPane.add(jPanel1,  new XYConstraints(0, 43, 512, 371));
    jPanel1.add(jPanel_PlayArea, new XYConstraints(0, 33, 524, 314));
    jPanel1.add(jPanel2,                  new XYConstraints(0, 0, 498, 30));
    jPanel2.add(jRadioButton1, new XYConstraints(331, 1, -1, -1));
    jPanel2.add(jRadioButton3,    new XYConstraints(443, 1, -1, -1));
    jPanel2.add(jRadioButton2, new XYConstraints(390, 1, -1, -1));
    jPanel2.add(jLabel6, new XYConstraints(245, 6, 30, -1));
    jPanel2.add(jLabel7, new XYConstraints(287, 5, 47, -1));
    jPanel2.add(jLabel5, new XYConstraints(197, 6, 47, -1));
    jPanel2.add(jLabel4, new XYConstraints(166, 7, 26, -1));
    jPanel2.add(jLabel3,  new XYConstraints(120, 6, 38, -1));
    jPanel2.add(jLabel1, new XYConstraints(23, 6, 39, -1));
    jPanel2.add(jLabel2, new XYConstraints(62, 6, 54, -1));
    //創建并初始化游戲區方塊
    playBlocks = new JButton[ROWS][COLS];
    for (int i = 0; i < ROWS; i++) {
      for (int j = 0; j < COLS; j++) {
        playBlocks[i][j] = new JButton();
        playBlocks[i][j].setBackground(Color.lightGray);
        playBlocks[i][j].setVisible(false);
        jPanel_PlayArea.add(playBlocks[i][j]);
      }
    }

  }

  //Overridden so we can exit when window is closed
  protected void processWindowEvent(WindowEvent e) {
    super.processWindowEvent(e);
    if (e.getID() == WindowEvent.WINDOW_CLOSING) {
      System.exit(0);
    }
  }

  public void start() {
    //初始化游戲參數
    score = 0;
    isPause = false;
    isEnd = false; //
    jButton2.setText("暫停");
    //初始化游戲區
    for (int i = 0; i < ROWS; i++) {
     for (int j = 0; j < COLS; j++) {
       playBlocks[i][j].setBackground(Color.lightGray);
       playBlocks[i][j].setVisible(false);
     }
    }
    //創建蛇身
    snake = new SnakeBody();
    //在游戲區內隨機放置食物
    int x = (int) (Math.random() * ROWS);
    int y = (int) (Math.random() * COLS);
    while (playBlocks[x][y].isVisible()) {
      x = (int) (Math.random() * ROWS);
      y = (int) (Math.random() * COLS);
    }
    playBlocks[x][y].setBackground(Color.yellow);
    playBlocks[x][y].setVisible(true);
    //初始化狀態提示區
    jLabel2.setText(Integer.toString(score));
    jLabel4.setText(Integer.toString(snake.throughbody));
    jLabel2.setText(Integer.toString(snake.throughwall));

    try {
      //啟動游戲
      thread.start();
    }
    catch (IllegalThreadStateException illegalThreadStateException) {}

  }

  class SnakeBody {
    // private int snake[][] = new int [MainFrame.ROWS][MainFrame.COLS];										//0位背景，1為蛇身,2為食物,3為穿身，4為穿墻，5為墻壁
    public int length = 3;
    public int rows[];
    public int columes[];
    public int direction = RIGHT;
    public int lastdirection = RIGHT;
    public long speed = 300;
    public int throughbody = 0;
    public int throughwall = 0;
    public SnakeBody() {
      length = 3;
      throughbody = 1;
      throughwall = 1;
      direction = RIGHT;
      lastdirection = RIGHT;
      switch(level){
        case BEGINNER:speed = 300;break;
        case MIDDLE:speed = 200;break;
        case EXPERT:speed = 100;break;
        default:speed = 200;
      }
      throughbody = 0;
      throughwall = 0;
      rows = new int[ROWS];
      columes = new int[COLS];
      for (int i = 0; i <= length; i++) {
        rows[i] = 1;
        columes[i] = length - i;
      }

    }

    public void move() {
      //去掉蛇尾
      playBlocks[rows[length]][columes[length]].setVisible(false);
      playBlocks[rows[length]][columes[length]].setBackground(Color.lightGray);
      //顯示除蛇頭外蛇身
      for (int i = 0; i < length; i++) {
        playBlocks[rows[i]][columes[i]].setBackground(Color.green);
        playBlocks[rows[i]][columes[i]].setVisible(true);
      }
      //移動除蛇頭外蛇身

      for (int i = length; i > 0; i--) {
        rows[i] = rows[i - 1];
        columes[i] = columes[i - 1];
      }
      //根據蛇身運動方向，決定蛇頭位置
      switch (direction) {
        case UP: {
          if (lastdirection == DOWN)
            rows[0] += 1;
          else {
            rows[0] -= 1;
            lastdirection = UP;
          }
          break;
        }
        case LEFT: {
          if (lastdirection == RIGHT)
            columes[0] += 1;
          else {
            columes[0] -= 1;
            lastdirection = LEFT;
          }
          break;
        }
        case DOWN: {
          if (lastdirection == UP)
            rows[0] -= 1;
          else {
            rows[0] += 1;
            lastdirection = DOWN;
          }
          break;
        }
        case RIGHT: {
          if (lastdirection == LEFT)
            columes[0] -= 1;
          else {
            columes[0] += 1;
            lastdirection = RIGHT;
          }
          break;
        }
      }
      //處理有穿墻寶物時的穿墻操作
      if (throughwall != 0) {

        if (rows[0] >= ROWS) {
          throughwall--;
          jLabel6.setText(Integer.toString(throughwall));
          rows[0] = ROWS - rows[0];